Property is theft, so the two are the same

This is true, but to float a counterpoint: the "on stolen land" is a direct counter to white-supremacist ideas that settler-colonies such as the US are and have always been "white countries", and those are the usual type of people calling immigrants "illegals".

Colonialists then: nobody is illegal

Colonialists now: cross that border and I'll shoot you!

“There is a very interesting debate raging at the moment about the nature of sin, for example,” said Oats.

“And what do they think? Against it, are they?” said Granny Weatherwax.

“It’s not as simple as that. It’s not a black and white issue. There are so many shades of gray.”

“Nope.”

“Pardon?”

“There’s no grays, only white that’s got grubby. I’m surprised you don’t know that. And sin, young man, is when you treat people as things. Including yourself. That’s what sin is.”

“It’s a lot more complicated than that—”

“No. It ain’t. When people say things are a lot more complicated than that, they means they’re getting worried that they won’t like the truth. People as things, that’s where it starts.”

“Oh, I’m sure there are worse crimes—”

“But they starts with thinking about people as things…”

Sir Terry Pratchett, Carpe Jugulem

There's no hyphen in "no one"

no one is illegal

I get where you're coming from, but that philosophy didn't work too well for indigenous people, hence the longer saying...

we still doing "all lives matter" huh?

Any land where anyone is barred from entering is stolen land.

All the land belongs to us all. When you exclude someone, you're stealing it from them.

We were all born to this earth equally and with equal rights to dignity and freedom.